[PATCH] tools/perf: Add includes for detected configs in Makefile.perf

[Athira Rajeev]

> On 08-Sep-2023, at 4:41 AM, Ian Rogers <irogers at google.com> wrote:
> 
> On Thu, Sep 7, 2023 at 10:19 AM Athira Rajeev
> <atrajeev at linux.vnet.ibm.com> wrote:
>> 
>> Makefile.perf uses "CONFIG_*" checks in the code. Example the config
>> for libtraceevent is used to set PYTHON_EXT_SRCS
>> 
>>        ifeq ($(CONFIG_LIBTRACEEVENT),y)
>>          PYTHON_EXT_SRCS := $(shell grep -v ^\# util/python-ext-sources)
>>        else
>>          PYTHON_EXT_SRCS := $(shell grep -v '^\#\|util/trace-event.c' util/python-ext-sources)
>>        endif
>> 
>> But this is not picking the value for CONFIG_LIBTRACEEVENT that is
>> set using the settings in Makefile.config. Include the file
>> ".config-detected" so that make will use the system detected
>> configuration in the CONFIG checks. This will fix isues that
>> could arise when other "CONFIG_*" checks are added to Makefile.perf
>> in future as well.
>> 
>> Signed-off-by: Athira Rajeev <atrajeev at linux.vnet.ibm.com>
>> ---
>> tools/perf/Makefile.perf | 3 +++
>> 1 file changed, 3 insertions(+)
>> 
>> diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
>> index 37af6df7b978..6764b0e156f4 100644
>> --- a/tools/perf/Makefile.perf
>> +++ b/tools/perf/Makefile.perf
>> @@ -351,6 +351,9 @@ export PYTHON_EXTBUILD_LIB PYTHON_EXTBUILD_TMP
>> 
>> python-clean := $(call QUIET_CLEAN, python) $(RM) -r $(PYTHON_EXTBUILD) $(OUTPUT)python/perf*.so
>> 
>> +# Use the detected configuration
>> +include .config-detected
> 
> Good catch! I think it should look like:
> https://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools-next.git/tree/tools/build/Makefile.build?h=perf-tools-next#n40
> 
> Thanks,
> Ian

Thanks for the review Ian.

Yes, missed the $(OUTPUT) . Will send a V2 with this change

Athira
> 
>> +
>> ifeq ($(CONFIG_LIBTRACEEVENT),y)
>>   PYTHON_EXT_SRCS := $(shell grep -v ^\# util/python-ext-sources)
>> else
>> --
>> 2.31.1